aluminum thermal conductivity
Coefficient of Thermal Expansion @ 20.0 - 100 °C Temp: 23.6 µm/m-°C | 13.1 µin/in-°F: 23.6 µm/m-°C | 13.1 µin/in-°F: Thermal Conductivity: 154 W/m-K | 1070 BTU-in/hr-ft²-°F: 167 W/m-K | 1160 BTU-in/hr-ft²-°F This is several times the value for steels (11 to 63 W/m K, or 6 to 37 Btu h ft F) (Ref 1.7). 6061 aluminum physical properties are given in the following lists, including density, melting point, coefficient of thermal expansion, elastic modulus, thermal conductivity, specific heat capacity electrical conductivity, and electrical resistance. Thermal Conductivity: 167 W/m-K: 1160 BTU-in/hr-ft²-°F AA; Typical at 77°F: Melting Point: 582 - 652 °C: 1080 - 1205 °F AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater; Eutectic melting can be completely eliminated by homogenization. Thermal expansion coefficient of aluminum is relatively large compared to other metals. Linear Thermal Expansion Coefficient Values for Aluminum Alloys: Metal or Alloy: Temp. • The thermal conductivity of aluminum and its alloys, which is 88 to 251 W/m K, or 51 to 164 Btu (h ft F), and increases with increase in temperature (Ref 1.4). All values should be regarded as typical, since these properties are dependent on the particular type of alloy, heat treatment, and other factors. Linear thermal expansion coefficients for aluminum and aluminum alloys are given in the following chart. Aluminum is nonferromagnetic, a property of importance in the electri-cal and electronics industries. ft⋅°F)] 1: Copper: 223: 2: Aluminum: 118: 3: Brass: 64: 4: Steel: 17: 5: Bronze: 15 sion cable. This Table gives typical values of thermal several common commercial metals and alloys. The thermal conductivity of aluminum alloys, about 50 to 60% that of copper, is advantageous in heat exchangers, evaporators, electri-cally heated appliances and utensils, and automotive cylinder heads and radiators. Values refer to ambient temperature (0 to 25°C).
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